<template>
	<div>
		<!-- 面包屑导航区 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
		  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图 -->
		<el-card>
		 <!-- 搜索与添加区域 -->
		<el-row :gutter="20">
			<el-col :span="8">
				<el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
				     <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
				</el-input>
			</el-col>
			<el-col :span="4">
				<el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
			</el-col>
		</el-row>
		<!-- 用户列表区域 -->
		<el-table :data=userlist border stripe>
			<el-table-column type="index" label="#"></el-table-column>
			<el-table-column label="姓名" prop="username"></el-table-column>
			<el-table-column label="邮箱" prop="email"></el-table-column>
			<el-table-column label="电话" prop="mobile"></el-table-column>
			<el-table-column label="角色" prop="role_name"></el-table-column>
			<el-table-column label="状态">
				<template v-slot="scope">
					<el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
				</template>
			</el-table-column>
			<el-table-column label="操作" width="180px">
				<template v-slot="scope">
					 <el-tooltip effect="dark" content="修改内容" placement="top" :enterable="false">
					      <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
					 </el-tooltip>
					<el-tooltip effect="dark" content="删除" placement="top" :enterable="false">
					    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
					</el-tooltip>
					<el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
					    <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
					</el-tooltip>					
				</template>
			</el-table-column>
		</el-table>
		<!-- 分页区域 -->
		 <el-pagination
		      @size-change="handleSizeChange"
		      @current-change="handleCurrentChange"
		      :current-page="queryInfo.pagenum"
		      :page-sizes="[1, 2, 5, 10]"
		      :page-size="queryInfo.pagesize"
		      layout="total, sizes, prev, pager, next, jumper"
		      :total="total">
		    </el-pagination>
		</el-card>
		<!-- 添加用户的对话框 -->
		<el-dialog
		  title="添加用户"
		  :visible.sync="addDialogVisible"
		  width="50%"
		  @close="addDialogClosed">
		  <!-- 内容主题区域 -->
		 <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
		   <el-form-item label="用户名" prop="username">
		     <el-input v-model="addForm.username"></el-input>
		   </el-form-item>
		   <el-form-item label="密码" prop="password">
		     <el-input v-model="addForm.password"></el-input>
		   </el-form-item>
		   <el-form-item label="邮箱" prop="email">
		     <el-input v-model="addForm.email"></el-input>
		   </el-form-item>
		   <el-form-item label="手机" prop="mobile">
		     <el-input v-model="addForm.mobile"></el-input>
		   </el-form-item>
		 </el-form>
		  <!-- 底部区域 -->
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="addDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="addUser">确 定</el-button>
		  </span>
		</el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
           title="修改用户"
           :visible.sync="editDialogVisible"
           width="50%"
		   @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
              <el-form-item label="用户名" >
                <el-input v-model="editForm.username" disabled></el-input>
              </el-form-item>
			  <el-form-item label="邮箱" prop="email">
			    <el-input v-model="editForm.email"></el-input>
			  </el-form-item>
			  <el-form-item label="手机号" prop="mobile">
			    <el-input v-model="editForm.mobile"></el-input>
			  </el-form-item>
			</el-form>
            <span slot="footer" class="dialog-footer">
              <el-button @click="editDialogVisible = false">取 消</el-button>
              <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
		<!-- 分配角色对话框 -->
		<el-dialog
		  title="分配角色"
		  :visible.sync="setRoleDialogVisible"
		  width="50%"
		  @close="setRoleDialogClosed">
		 <div>
			 <p>当前的用户:{{userInfo.username}}</p>
			 <p>当前的角色:{{userInfo.role_name}}</p>
			 <p>分配新角色:
			  <el-select v-model="selectedRoleId" placeholder="请选择">
			     <el-option
			       v-for="item in rolesList"
			       :key="item.id"
			       :label="item.roleName"
			       :value="item.id">
			     </el-option>
			   </el-select>
			 </p>			 
		 </div>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
		  </span>
		</el-dialog>
		
	</div>
</template>

<script>
	export default{
		data(){
			//验证邮箱的规则
			var checkEmail=(rule,value,cb)=>{
				const regEmail=/^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
				if(regEmail.test(value)){
					return cb()
				}
				cb(new Error('请输入合法的邮箱'))
			}
			//验证手机号的规则
			var checkMobile=(rule,value,cb)=>{
				const regMobile=/^1[3456789]\d{9}$/
				if(regMobile.test(value)){
					return cb()
				}
				cb(new Error('请输入合法的手机号'))
			}
			return{
				//获取列表的参数对象
				queryInfo:{
					query:'',
					pagenum:1,
					pagesize:2
				},
				userlist:[],
				total:0,
				//控制添加用户对话框的显示与隐藏
				addDialogVisible:false,
				//添加用户的表单数据
				addForm:{
					username:'',
					password:'',
					email:'',
					mobile:''
				},
				//添加表单的验证规则
				addFormRules:{
					username:[
						{required:true,message:'请输入用户名',trigger:'blur'},
						{min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
					],
					password:[
						{required:true,message:'请输入密码',trigger:'blur'},
						{min:6,max:15,message:'用户的密码在6~15个字符之间',trigger:'blur'}
					],
					email:[
						{required:true,message:'请输入邮箱',trigger:'blur'},
					    {validator:checkEmail,trigger:'blur'}
					],
					mobile:[
						{required:true,message:'请输入手机号',trigger:'blur'},
						{validator:checkMobile,trigger:'blur'}
					]
				},
				//控制显示用户对话框的显示与隐藏
				editDialogVisible:false,
				//查询到的用户信息对象
				editForm:{},
				//修改表单的验证规则对象
				editFormRules:{
					email:[
						{required:true,message:'请输入用户邮箱',trigger:'blur'},
						{validator:checkEmail,trigger:'blur'}
					],
					mobile:[
						{required:true,message:'请输入用户手机号',trigger:'blur'},
						{validator:checkMobile,trigger:'blur'}
					]
				},
				//控制分配角色对话框的隐藏和显示
				setRoleDialogVisible:false,
				//需要被分配角色的用户信息
				userInfo:{},
				//所有角色的数据列表
				rolesList:[],
				//已选中的角色id
				selectedRoleId:''
			}
		},
		created(){
			this.getUserList()
		},
		methods:{
		  async	getUserList(){
			  const {data:res}=await	this.$http.get('users',{params:this.queryInfo})
			  if(res.meta.status!==200) return this.$message.error('获取用户信息失败')
			  this.userlist=res.data.users
			  this.total=res.data.total
			},
			//监听pagesize改变事件
			handleSizeChange(newSize){
				this.queryInfo.pagesize=newSize
				this.getUserList()
			},
			//监听页码值改变的事件
			handleCurrentChange(newPage){
				this.queryInfo.pagenum=newPage
				this.getUserList()
			},
			//监听switch开关状态
			async  userStateChanged(userInfo){
			const {data:res}=await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
			if(res.meta.status!==200){
				userInfo.mg_state=!userInfo.mg_state
				return this.$message.error('更新用户状态失败！')
			} 
			this.$message.success('更新状态成功！')
		    },
			//监听信息栏是否被关闭
		    addDialogClosed(){
				this.$refs.addFormRef.resetFields()
			},
			addUser(){
				this.$refs.addFormRef.validate(async valid=>{
					if(!valid) return
					const {data:res}=await this.$http.post('users',this.addForm)
					if(res.meta.status!==201){
						this.$message.error('添加用户失败！')
					}
					this.$message.success('添加用户成功！')
					//隐藏添加用户的对话框
					this.addDialogVisible=false
					//刷新用户列表数据
					this.getUserList()
				})
			},
			async showEditDialog(id){
			const {data:res}=await this.$http.get('users/'+id)			
			if(res.meta.status!==200){
				return this.$message.error('查询用户信息失败！')
			} 
			this.editForm=res.data
			this.editDialogVisible=true
			},
			//监听修改用户对话框的关闭事件
			editDialogClosed(){
				this.$refs.editFormRef.resetFields()
			},
			//提交前的预验证 修改用户信息并提交
			editUserInfo(){
				this.$refs.editFormRef.validate(async valid=>{
					if(!valid) return
					//发起修改用户信息的数据请求
					const {data:res}=await this.$http.put('users/'+this.editForm.id,
					{email:this.editForm.email,mobile:this.editForm.mobile})
					if(res.meta.status!==200){
					  	 return this.$message.error('修改用户失败！')
					}					
					//隐藏添加用户的对话框
					this.editDialogVisible=false
					//刷新用户列表数据
					this.getUserList()
					//提示修改成功
					this.$message.success('更新用户信息成功！')
				})
			},
			//根据id删除对应的用户信息
			async removeUserById(id){
				//弹框提示是否删除
				const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
				          confirmButtonText: '确定',
				          cancelButtonText: '取消',
				          type: 'warning'
				}).catch(err=>err)
						//如果用户确认删除 返回的是字符串 confirm
						//如果用户取消删除 catch 捕获错误信息 cancel
						//console.log(confirmResult)
			    if(confirmResult!=='confirm'){
					return this.$message.info('已经取消删除')
				}
				//发起请求，删除信息
				 const {data:res}=await this.$http.delete('users/'+id)
				 if(res.meta.status!==200){
				 	return this.$message.error('删除用户失败！')
				 } 
				 this.$message.success('删除成功')
				 this.getUserList()
			},
			//展示分配角色的对话框
			async setRole(userInfo){
				this.userInfo=userInfo
				//在展示对话框之前获取所有角色列表
				const {data:res}=await
				this.$http.get('roles')
				if(res.meta.status!==200){
					return this.$message.error('获取角色列表失败')
				} 
				this.rolesList=res.data
				this.setRoleDialogVisible=true
			},
			// 点击按钮,分配角色
			async saveRoleInfo(){
				if(!this.selectedRoleId){
					return this.$message.error('请选择要分配的角色！')
				}
				const {data:res}=await
				this.$http.put(`users/${this.userInfo.id}/role`,
				{rid:this.selectedRoleId})
				console.log(res)
				if(res.meta.status!==200){
					return this.$message.error('更新角色失败!')
				}
				this.$message.success('更新角色成功!')
				this.getUserList()
				this.setRoleDialogVisible=false
				
			},
	        //监听分配角色对话框的关闭事件
			setRoleDialogClosed(){
				this.selectedRoleId=''
				this.userInfo={}
			}
		}
	}
</script>

<style scoped>
</style>
